As of 14:04 CDT

Weather in Harness, IL

80°Current weather

Harness, Thursday, 8 October, 14:04

Clear. Feels like 79°. High 80°, low 50°.

Pressure30.06 inHg
Wind4 mph W
Humidity33%
Visibility6.2 mi
Dew point49°

Monthly outlook for Harness, IL: average high 75.4°, average low 55.4°. That is 5.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 15 October (92°), the coolest 18 October (42.8°).

75.4°/55.4°
Average high / low
+5.8°
Above normal
4 / 4
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October79.6°66.4°+7.4°
18 October – 27 October68.4°61.6°+3.8°
28 October – 6 Novemberat normal57.8°—

October records over 66 years

89.4°7 October 2007All-time high
21.9°22 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Broadwell (15 mi).

Fri, 0983° / 53°0Clear
83 °Clear

Harness, Friday, 9 October

Clear. High 83°, low 53°.

Pressure30.09 inHg
Wind12.4 mph S
Humidity43%
Visibility6.2 mi
Dew point51°
Sat, 1082° / 59°0Overcast
82 °Overcast

Harness, Saturday, 10 October

Overcast. High 82°, low 59°.

Pressure30.09 inHg
Wind6.8 mph SE
Humidity52%
Visibility6.2 mi
Dew point57°
Sun, 1176° / 58°0Clear
76 °Clear

Harness, Sunday, 11 October

Clear. High 76°, low 58°.

Pressure29.94 inHg
Wind4.5 mph N
Humidity60%
Visibility6.2 mi
Dew point58°
Mon, 1287° / 60°0Overcast
87 °Overcast

Harness, Monday, 12 October

Overcast. High 87°, low 60°.

Pressure29.88 inHg
Wind9.3 mph SW
Humidity46%
Visibility6.2 mi
Dew point59°
Tue, 1384° / 69°0.02Light rain
84 °Light rain

Harness, Tuesday, 13 October

Light rain. High 84°, low 69°.

Pressure29.85 inHg
Wind11.9 mph N
Humidity50%
Visibility—
Dew point62°
Wed, 1480° / 59°0.08Light rain
80 °Light rain

Harness, Wednesday, 14 October

Light rain. High 80°, low 59°.

Pressure29.97 inHg
Wind15.7 mph SE
Humidity58%
Visibility—
Dew point52°
Thu, 1592° / 76°0.1Light rain
92 °Light rain

Harness, Thursday, 15 October

Light rain. High 92°, low 76°.

Pressure29.85 inHg
Wind19.3 mph SW
Humidity41%
Visibility—
Dew point63°
Fri, 1673° / 54°0.98Heavy rain
73 °Heavy rain

Harness, Friday, 16 October

Heavy rain. High 73°, low 54°.

Pressure30.27 inHg
Wind15.9 mph W
Humidity74%
Visibility—
Dew point52°
Sat, 1759° / 45°0Partly cloudy
59 °Partly cloudy

Harness, Saturday, 17 October

Partly cloudy. High 59°, low 45°.

Pressure30.59 inHg
Wind13.8 mph NE
Humidity50%
Visibility—
Dew point37°
Sun, 1861° / 43°0Overcast
61 °Overcast

Harness, Sunday, 18 October

Overcast. High 61°, low 43°.

Pressure30.45 inHg
Wind8.6 mph E
Humidity34%
Visibility—
Dew point28°
Mon, 1973° / 50°0.03Light rain
73 °Light rain

Harness, Monday, 19 October

Light rain. High 73°, low 50°.

Pressure30.18 inHg
Wind15.1 mph SW
Humidity65%
Visibility—
Dew point56°
Tue, 2077° / 59°0Overcast
77 °Overcast

Harness, Tuesday, 20 October

Overcast. High 77°, low 59°.

Pressure30.12 inHg
Wind11.4 mph SW
Humidity53%
Visibility—
Dew point55°
Wed, 2173° / 56°0Clear
73 °Clear

Harness, Wednesday, 21 October

Clear. High 73°, low 56°.

Pressure30.09 inHg
Wind6.4 mph W
Humidity31%
Visibility—
Dew point38°
Thu, 2264° / 52°0.15Light rain
64 °Light rain

Harness, Thursday, 22 October

Light rain. High 64°, low 52°.

Pressure29.97 inHg
Wind17.1 mph W
Humidity79%
Visibility—
Dew point51°
Fri, 2361° / 43°0Clear
61 °Clear

Harness, Friday, 23 October

Clear. High 61°, low 43°.

Pressure30.18 inHg
Wind12.5 mph W
Humidity43%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2461° / 46°0.14Climate normal
61 °Climate normal

Harness, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high61°
Average low46°
Average precipitation0.14 in
Chance of precipitation33%
Record high81° (1963)
Record low24° (1981)
Sun, 2561° / 45°0.15Climate normal
61 °Climate normal

Harness, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high61°
Average low45°
Average precipitation0.15 in
Chance of precipitation30%
Record high78° (1963)
Record low28° (2013)
Mon, 2659° / 44°0.14Climate normal
59 °Climate normal

Harness, Monday, 26 October

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.14 in
Chance of precipitation32%
Record high82° (1963)
Record low24° (1962)
Tue, 2760° / 44°0.09Climate normal
60 °Climate normal

Harness, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.09 in
Chance of precipitation32%
Record high77° (1984)
Record low31° (2001)
Wed, 2859° / 43°0.06Climate normal
59 °Climate normal

Harness, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.06 in
Chance of precipitation18%
Record high76° (1999)
Record low27° (1976)
Thu, 2959° / 43°0.08Climate normal
59 °Climate normal

Harness, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.08 in
Chance of precipitation27%
Record high79° (1971)
Record low25° (1980)
Fri, 3061° / 45°0.12Climate normal
61 °Climate normal

Harness, Friday, 30 October

Climate normal for this date — 60-year average.

Average high61°
Average low45°
Average precipitation0.12 in
Chance of precipitation30%
Record high80° (1971)
Record low25° (1980)
Sat, 3160° / 45°0.19Climate normal
60 °Climate normal

Harness, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high60°
Average low45°
Average precipitation0.19 in
Chance of precipitation42%
Record high77° (1968)
Record low28° (2019)
Sun, 0159° / 43°0.2Climate normal
59 °Climate normal

Harness, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.2 in
Chance of precipitation35%
Record high79° (2016)
Record low25° (1993)
Mon, 0257° / 42°0.08Climate normal
57 °Climate normal

Harness, Monday, 2 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation28%
Record high77° (1961)
Record low25° (1996)
Tue, 0356° / 41°0.11Climate normal
56 °Climate normal

Harness, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.11 in
Chance of precipitation30%
Record high77° (1987)
Record low18° (1991)
Wed, 0456° / 42°0.1Climate normal
56 °Climate normal

Harness, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.1 in
Chance of precipitation25%
Record high76° (1978)
Record low16° (1991)
Thu, 0556° / 41°0.15Climate normal
56 °Climate normal

Harness, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.15 in
Chance of precipitation30%
Record high77° (1978)
Record low19° (1991)
Fri, 0655° / 39°0.08Climate normal
55 °Climate normal

Harness, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.08 in
Chance of precipitation32%
Record high71° (2020)
Record low25° (1982)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Harness, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Harness, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.